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. Author manuscript; available in PMC: 2023 Oct 31.
Published in final edited form as: J Neonatal Perinatal Med. 2023;16(3):527–537. doi: 10.3233/NPM-230084

Table 5:

Exposure to different sedatives and analgesics before, during and after NEC Onset

Variable N Overall Mild/no WMI Moderate/Severe WMI P-Value
N=67 N=48 N=19
From Birth Until NEC onset
Morphine mg/kg, mean (± SD) 61 0.0 (0.0) 0.0 (0.0) 0.0 (0.0) 0.99
Fentanyl mg/kg, mean (± SD) 67 0.0 (0.1) 0.0 (0.1) 0.0 (0.0) 0.029
Midazolam, mg/kg, mean (± SD) 67 0.0 (0.1) 0.0 (0.1) 0.0 (0.0) 0.99
Methadone, mg/kg, mean (± SD) 67 0.0 (0.0) 0.0 (0.0) 0.0 (0.0) 0.99
From NEC onset +2 weeks
Morphine mg/kg, mean (± SD) 67 0.0 (0.1) 0.0 (0.1) 0.0 (0.0) 0.99
Fentanyl mg/kg, mean (± SD) 67 0.3 (0.3) 0.3 (0.3) 0.4 (0.5) 0.22
Midazolam, mg/kg, mean (± SD) 67 0.2 (1.0) 0.2 (1.1) 0.1 (0.2) 0.99
Methadone, mg/kg, mean (± SD) 67 0.0 (0.0) 0.0 (0.1) 0.0 (0.0) 0.99
From end of 2 weeks to MRI
Morphine mg/kg, mean (± SD) 67 2.0 (12.0) 2.7 (14.1) 0.2 (0.7) 0.99
Fentanyl mg/kg, mean (± SD) 67 382 (1051) 339 (955) 491 (1286) 0.46
Midazolam, mg/kg, mean (± SD) 67 2.1 (11.2) 2.6 (13.2) 0.8 (2.1) 0.99
Methadone, mg/kg, mean (± SD) 67 2.0 (10.3) 2.2 (11.5) 1.5 (6.6) 0.99